The Michigan Department of Transportation (MDOT) plans to replace the Lafayette Avenue Bridge over the Saginaw River in Bay City, MI. Hydraulic scour analysis of the planned bridge replacement resulted in deep scour depths, which MDOT believed were excessive due to a subsurface layer of cohesive soil that existed across the bridge site. MDOT reache
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The sixth round of the Every Day Counts (EDC-6) initiative selected electronic ticketing (eTicketing) for rapid deployment among highway agencies to enhance work zone safety, improve quality, and realize cost savings through digitalization. Highway construction projects generate massive amounts of valuable data that historically were communicated v
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This manual provides information for understanding, assessing, and addressing interactions between river functions and transportation infrastructure. The manual adopts a holistic approach by illustrating not only the effects of rivers on roads and bridges, but also the effects of roads and bridges on rivers and their floodplains. Recognizing these
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Researchers for this study developed improved video processing algorithms that can identify more complex behavior and actions of individuals (i.e., pedestrians, drivers, bicyclists) in various traffic situations. The research team wanted to build on existing video-processing algorithms that can identify basic behavior, “primitives” (such as when a
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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Between April 13 and April 15, 2018, the island of Kaua'i in the State of Hawai'i experienced a record amount of rainfall, nearly 50 inches total, causing severe flooding and landslides along Kūhiō Highway (State Route 56 and 560). Three historic one-lane, load-restricted bridges along Route 560, Waiʻoli, Waikoko, and Waipā, often referred to as th
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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The Beaver Dam Wash is a seasonal stream that drains a watershed of over 600 square miles in Arizona, Utah, and Nevada. The area is characterized by high bluffs, erodible soil, and deep river channels, which makes it susceptible to flooding. In 2004-2005, the region experienced an unusually warm winter. Heavy rains swept through the area in early w
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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PDF
Interstate 70 (I-70), the main east-west interstate in the State, provides a critical connection for both people and freight through Colorado and across the Rocky Mountains. On August 10, 2020, a fire broke out in the median of I-70 in Glenwood Canyon in Colorado. The Grizzly Creek wildfire grew out of control, burning over 32,000 acres. The canyon
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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This document focuses on alternative methods to use in the production of ordinary portland cement (OPC). The production of OPC is associated with substantial carbon dioxide (CO2) emissions, estimated at nearly 9 percent of the global carbon emissions.
This provides information regarding technical support for Interactive Highway Safety Design Model (IHSDM). The Federal Highway Administration (FHWA) has discontinued IHSDM software development. However, FHWA will continue to provide free technical support via Geometric Design Laboratory (GDL) staff through at least September 2024, but essentially a
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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Reclaimed asphalt pavement (RAP) has been used in pavement rehabilitation and reconstruction for decades. Positive and sustainable benefits (cost, environmental and societal) of increased RAP usage have been documented by the National Asphalt Pavement Association (NAPA). Nebraska Department of Transportation (DOT) has recently reported annual savin
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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PDF
The Makah Tribe has resided in a remote oceanside region in the northwestern tip of Washington State for thousands of years and has had to adapt to a changing environment to survive. The Tribe is now engaged in various climate change and resilience projects to ensure the community’s long-term ability to live safely in their Tribal lands.
United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment
2023-01-01
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The U.S. Department of Transportation’s (USDOT) Health in Transportation (HinT) Working Group examines and promotes the Department’s existing policies and programs to assist modal agencies to address health-related topics that are raised by staff, project sponsors, and the public. The Working Group covers topics such as safety, equity, accessibilit
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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PDF
Macrotexture is generally provided in asphalt pavement through aggregate gradation in the surface layer that provides voids or channels for water on the pavement to drain. For years, the focus on dense-graded asphalt (DGA) surface mixes in particular has been on durability, which has the potential to result in less surface macrotexture than in the
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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PDF
The city of Durango, Colorado, with a population of approximately 18,500 located on the San Juan Skyway All-American Road and just east of the Trail of the Ancients National Scenic Byway, is considered to have some of the best single track mountain biking in the world. Several high-profile bicycling races have been hosted in the diverse mountain se
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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This flyer provides information for how those interested in working for Turner-Fairbank Highway Research Center (TFHRC) can look for open positions. Join our dynamic research and support team at the TFHRC. Located in McLean, VA, TFHRC is a federally owned and operated national research complex that houses 15 laboratories and support facilities. We
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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Hurricane Michael made landfall in the Florida Panhandle on October 10, 2018. With 155 mile per hour winds and a 14-foot storm surge, it was the first Category 5 hurricane to hit the continental United States in over 25 years. Flooding and wave action damaged U.S. Highway 98 (US 98) in multiple locations in Bay, Franklin, and Gulf Counties, leaving
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United States. Department of Transportation. Federal Highway Administration
2023-01-01
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PDF
From February 11 to 13, 2020, northern Alabama received over 10 inches of rain, triggering a landslide underneath U.S. Highway 231 (US 231). The landslide occurred 1.6 miles south of Lacey Springs, Morgan County. The event affected about 400 feet of the heavily used corridor that serves much of the traffic between the cities of Arab and Huntsville.
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